watson



F. C. WATSON. f' '"'fff' TRACTOR PLOW.

APPLlcATloN FILED Aue.29. 19u.

1,362,277. Patented Dec. 14, 1920. ,.1 T 2 sunsets-SHEET 2.

" Wheels nearthe rear end of the frame, and

plow units each havino' a beam flexibly conf nected directly t6 suc .95any 'of the various makes; that isto say to UNITEO STATES PATENTOFFICEi-f FRANK o. WATSON, or DES MOINES, IOWA, ASSIGNOP. To .avisarVCOMPANY, OF'.

racen, ILLINOIS, A CORPORATION OEILLINOIs v TRACTOR-PLOW.

T o all/whom integr/concern.' l Be it. known that I, FRAN`K C. WATSON, acitizen of the United States, a resident of i 'Des Moi-nes, in thecounty of Polk'and State A This inventionrelates to improvements in ofIowa,- have invented new and. useful Improvements in Tractor- P,locws,of which the followin is a s ecic'ation.

plowing mechanisms'eacli vof which comprises a draft viframe,power-driven traction frame by draft devices positioned near theverticaltransverse plane ofthewhel axis.

One of theiobjects isto so'connect the` 'several plowv units to theframe that the propelling eiiciency ofthe tractionwheels can beincreased by the wei ht of one or more plow units, and the weig t of thetractor and frame, by themselves considered, be coryrespondinglyreduced. `Another object-isto iso provide a means for connecting, incommon, two plow units to a .tractorframe in .such way that they, canjbeindependently lifted to their uppermost positions and independentlylowered to working. lines, the

common connectin devices being such as` "to hold pro erly either oftheplows in the ground whi e at work, and provide sulicient side beam orrail 2 immediately back of the flexibility whereby either unit can adaptitself to variations in the conditions which it meets.

mechanism vfor connecting` to' a tractor of.-

Another Objectis to provide. a

the sort here contemplated, plow units of provide attaching deviceswhereby plows primarily, designed kto bedrawnby horses or by a tractorother thansuch asrls herein shownfcan be connected to onelike thatherein, and proper provision `Awillbe ready for` attaining the correctline ofdraft and 'for properly Vsupporting the forward parts of eachplow unit. f

The improvements-whichl havemad'e are particularly usefulinconstructing: and operating a tractor: mechanismhaving a plow systemofwhichl lone-half is .composed -of one or more 'right-handy two-way??Specification of Letters Patent.

plow nnitsfand the Such arrangement of chains 18. These chains 'haveoneend co tlierear` half of a well known-tractor' with n iyili*l Fig. 4is a detail plan view ofa part of the draw-bar and con11ect` on2"betweenbar and the iframe of the tractor.V

Like characters of rreference denote corresponding parts throughout thefigures.

,In the drawings, the tractor 1 is provided rammed-paesi, k1920.Applicationmed. August 29, i917. serial No. 188,823.

vention employed for With the longitudinal spaced side beams or rails 2,the ,rear traction yor driving wheels 3, mounted on the rear axle 4andadapted to'be actuated in any suitable manner from an engine, notshown, mounted ontlie frame of the tractor. V y Y OnV one'side of thetractor there is a toothed segment `5 and on. the other side is,a'toothed segment 6.` Pivoted ito the, .frame and associated'with these ent 5 is a lever 7 having a spring presse detent 8, and pivoted tothe frame and associated with the segment 6`is a lever 9 having a springpressed detent 10.' The functions of connection with the attachment'iand opera- ,tion of' the lows.

Connecte tol and depending 4each rear axle 14 is a memberll providedwith Plvotally connected with each Iiiember 11,

Aby means of a bolt 13 'passing through any bars 14, and disposed`transversely of the vthese levers will be more fully explained in aplurality'of. openings 12, preferably arrangedv in a row spaced oneabove'gthe other.

,nected' with the rear end portions of said' l tractor is'a draw-bar 15,which extends referably across the faces of the traction w eels 3,'andthe `body of` said draw-bar is pro:V

luralityy of openings 16 disvided with a posedlongitu inally thereof.Toi brace the draw-bar against l.motion sidewise'fof the ..t1.actor,anangular bar 17 'is provided, bolted Htothe draw-bar, and havingdivergingl portions bolted to thebars 14. .The drawebar y y '15- andrear ends of the ,barsl 1,4:y are adjusted into up and down positions bymeansof link nected tojth'e draw-bar 15 and extend', upwardly passthrough an eyev 19 secure depifdiiig' Toi'iad the height of thedraw-bar, whereby dierent plows may have connection therewith, thechains '-18 are slipped throughtheeyes 19 until the proper adjustmentisbmagle, when,one link is caused A tlellio-izfoiitaliposition shown inFig. 3, in the eye .lizayhiclmwill lock the draw-bar in adjustedposition.

11:' andfmfdesignateright/fand left hand plows, each having-{the usualplowbeam 22 and the 'plowi'if A ement 23.-; The forward endaofeachgbeamQZiis pivotally connected sa iwitlr aieoupling224y which inyturn lis adapted to have an adjiustableeconnection .with the- 15dfrawsbar sfsby'meatns offliolts' passing through i 1f--a-theopenings?16in said draw-bar... faEiig.--2thencouplings 24: are i, preferablycoupledzdirectly fiinline :with the tractionazwheels so; that thepullnon the djustably -ithathesA forward I .end fieachaplowfbeam 22isaflandawheel 26 Mhichfiactsiasaai stop that is; if fthetractor 25.strilesi? sharpsfzbumppthe land wheel i :rid-

ing over the bump will preveiittheti'plow `diggingftoogdeep, andsaidlandwheelswhen i ladjustedy-wll regulate ther-.depth-theiplow'- fingyn.eleliientssA 'will rentergthefsoilgli {Alsofconith eaohf aplonlbeamiis a; disk-,27 i dante f ravela-mmediately in .y hee1f-29randitsf othernd wlth a orll'eeted Withs-the ploweb iis 1 chain mewliat rod 3()connected-withiftlie neatly .supper a, fory p'lvotallyV Y upper sidewill now be on the lower side inv lowered position for plowing andtheother plow raised into inoperative position. It is understood that inhill-side plowing, it is always best toV tu'rn the furrow down hill. Inthis way, very little power is used.

It is also understood that the Vdraw-bar 15 may have adjustableconnectionv with the frame of the tractor, and also raised and loweredwhen adjusted so that it is possible with the means shown, to provide aneX- eeptionally low draw-bar connection for the various makes of plow's.

What I claim is 1. The combination of adraft frame, traction wheelsthereon adapted to be driven by power,4 two plowing units each compris*.ing a beam and a bottom, a vertically swing [zing draw bar arranged atright angles to the line of draft and pivotallyr connected to thefs'aidgplow units independently of each other,

' ,meansafor suspending said draw bar from actor frame, independentlifting and devices for the plow units for her unit from the groundwhile in operation and transmitting W4of the elevated unit to the frameo near the'traction wheels.

onibination of a draft frame, veels' thereon adapted to be drivenagtransversely positioned vertill-f swingingdraw bar, means for perma-'ng said draw bar entirely on thefdraftfurame holding it in horizontal iytwo independent plow units, Eallyand independently adjustdevices forsecuring said n rd ravydiar, and two independfjtifn `n the draft framerely ject@ to the plowing' units, it bein adapted to be lifted out ofthe and 1d" herepnadapted to beldriven jfltw ent plowing units, a jfibar positioned par-v of tligvltragction wheels, means qg'ctingfl;saidv bar to the p` 'tt'ng it to swing in on ar n! shin `le holding itin "hoi'i'btl pia-Ires; raeansfbr limiting the downward movement of saidbar, two indefrana pendent lifting ldeviceson the frame connected to theplowing units, respectively, for lifting either unit independently ofthe other to a position where it bears downward on the traction wheels.Y A

4. The combina-tion of the draft frame, the transversely positioned drawbar, the vertically adjusta le means carried by the frame for holdingthe draw bar in horlzontal parallelism and in lines at right angles to,the lines of advance, two plowing units independently connected to thedraw bar b vertically and horizontally adjustable inge devices, and twoindependent lifting mechanisms on the frame connected respectively tothe plowing units.

5. The combination of a draft frame, a draw bar at right angles to theline of advance, vertically adjustable means on the frame for holdingthe draw bar in horizontal parallelism and at right anglesy to the lineof advance while said bar swings vertica-lly', two independent plowingunits each having a bottom, a beam and a front gage wheel secured to thebeam, means for adjustably connecting each of said plowing. units withsaid draw bar independently of the other, and two independent liftingand supporting mechanisms on the frame, one for each plow unit andadapted to lift all of FRANK c.y WATSON.

